vLite probably doesn't support SP2 yet and I am pretty sure the guy makes vLite hasn't released an update or been heard from in like a year. So vLite might not be possible with SP2 anytime soon or ever.

OK, I'm downloading this now via Window's Update, and the fucking thing is 567.3MB!!!

What the fuck? I am totally up to date with all my updates prior to this - I can't believe it's so big. SP1 was only about 90MB if you were previously up to date.

EDIT: Just checked the link and the full version is only 10MB more than what I'm downloading. So I'm going to throw out a wild guess that MS haven't optimized the Windows Update download yet to take account of what old updates you have installed.
Time will tell what other people end up downloading via the auto update function.

well honestly i haven't noticed any difference. Things seems slightly more responsive, but not a big difference. And my download was only ~356mb for SP2, so i recon most people have the updates or bug fixes installed that are part of it, just not any of the OS tuning they might have done.

hm, shoulda done some tests like boot time and whatnot, or how long it takes for all my start-ups to complete in comparison to SP1. oh well either way, it's beneficial.

There is no performance improvements with sp2... I think there was a thread a while back showing that if your a gamer you better stay way way far away from it.... if sp2 is installed can it be removed besides doing a fresh os install?

eh, i saw some reviews as well but that was in february, 4 months is a good bit of time to tune the SP more. Though i would like to see a comparison of SP1 to the SP2 they have right now, not the RC from february.